哥伦比亚大学的一名助教，Paul Tetlock所做的研究用于创建新闻分析系统，他担心技术已经使市场倾斜。
Paul Tetlock, an associate professor at Columbia University who did research that was used to create the news algorithms, worries that technology has skewed the playing field.
根据相关的统计数据和实证研究的成果，分析了我国股票市场高系统性风险的特性和现阶段券商所面临的严峻挑战。
Through the statistical data and the achievement of empirical study, the high system risk character of Chinese stock market and its high challenge for securities companies at present are revealed.
然后，利用自回归条件异方差模型系统研究了我国封闭式基金市场的价格波动特性，分析了基金市场的风险特征。
Then, it studies the characteristic of price volatility and risk in closed-end securities investment fund market by use of ARCH models.
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